ERR_SHARING_RULE on Salesforce: Sharing rule error. Root cause: A Salesforce Sharing Rule is preventing the operation. The record's sharing settings may restrict which users can view or edit it, and the API call is being made by a user who does not meet the sharing criteria. Alternatively, a sharing rule recalculation triggered by the operation is causing a timeout. Step 1: Review sharing rules. Check rule setup Step 2: Check for conflicts. Look for conflicting rules Step 3: Verify criteria. Check rule criteria Step 4: Test sharing. Verify access works